 Germany: Wetzlar - Singles - Main |
|---|
| 1/8-finals | Choinski J. | Luetjen J. | 2:0 (6:4, 6:3) | details | 09.08.2017 |
| 1/16-finals | Luetjen J. | Dettinger M. | 2:0 (7:63, 7:65) | details | 08.08.2017 |
| 1/16-finals | Luetjen J. | Obert A. | CAN. | details | 08.08.2017 |
| Germany: Kaltenkirchen - Singles - Main |
|---|
| 1/16-finals | Luetjen J. | Hoeveler L. | 1:2 (7:68, 3:6, 4:6) | details | 21.06.2017 |
| Germany: Nussloch - Singles - Main |
|---|
| 1/16-finals | Luetjen J. | Netuschil M. | 0:2 (4:6, 69:7) | details | 24.01.2017 |
 Romania: Sibiu - Singles - Main |
|---|
| 1/8-finals | Satral J. | Luetjen J. | 2:1 (6:1, 5:7, 6:2) | details | 22.09.2016 |
| 1/16-finals | Cornea V. V. | Luetjen J. | 0:2 (1:6, 1:6) | details | 21.09.2016 |
| Germany: Wetzlar - Singles - Main |
|---|
| Quarter-finals | Luetjen J. | Cid Subervi R. | 1:2 (6:4, 64:7, 2:6) | details | 11.08.2016 |
| 1/8-finals | Luetjen J. | Wagner B. | 1:0 RET. (7:5, 2:1) | details | 10.08.2016 |
| Germany: Kamen - Singles - Main |
|---|
| Quarter-finals | Luetjen J. | Heyman C. | 0:2 (63:7, 3:6) | details | 01.07.2016 |
| 1/8-finals | Luetjen J. | Borsos G. | 2:0 (6:4, 6:4) | details | 30.06.2016 |
| 1/16-finals | Grenier H. | Luetjen J. | 0:2 (2:6, 3:6) | details | 29.06.2016 |
| Germany: Kaltenkirchen - Singles - Main |
|---|
| Semi-finals | Maden Y. | Luetjen J. | 2:1 (6:0, 4:6, 6:1) | details | 26.06.2016 |
| Quarter-finals | Fallert F. | Luetjen J. | WO. | details | 24.06.2016 |
| 1/8-finals | Luetjen J. | Nagy P. | 2:0 (6:0, 6:1) | details | 23.06.2016 |
| 1/16-finals | Inzerillo J. | Luetjen J. | 0:2 (2:6, 5:7) | details | 22.06.2016 |
 USA: Tampa - Singles - Main |
|---|
| Quarter-finals | Luetjen J. | Statham J. R. | 0:2 (4:6, 4:6) | details | 06.05.2016 |
| 1/8-finals | Baughman D. | Luetjen J. | 1:2 (6:4, 3:6, 2:6) | details | 05.05.2016 |
| 1/16-finals | Luetjen J. | Madonia S. | 2:0 (7:61, 6:4) | details | 05.05.2016 |
| USA: Vero Beach - Singles - Main |
|---|
| Final | Podzus M. | Luetjen J. | 0:2 (64:7, 3:6) | details | 01.05.2016 |
| Semi-finals | Shapovalov D. | Luetjen J. | 1:2 (0:6, 6:4, 3:6) | details | 30.04.2016 |
| Quarter-finals | Luetjen J. | Baughman D. | 2:0 (6:3, 6:2) | details | 29.04.2016 |
| 1/8-finals | Luetjen J. | Echazu M. | 2:1 (6:2, 3:6, 6:2) | details | 28.04.2016 |
| 1/16-finals | Nagy P. | Luetjen J. | 0:2 (3:6, 4:6) | details | 26.04.2016 |
| USA: Little Rock - Singles - Main |
|---|
| 1/8-finals | Luetjen J. | Sandgren T. | 1:2 (64:7, 6:1, 64:7) | details | 14.04.2016 |
| 1/16-finals | Luetjen J. | Daciek P. | 2:0 (6:1, 6:1) | details | 13.04.2016 |
| Germany: Nussloch - Singles - Main |
|---|
| 1/16-finals | Luetjen J. | Maden Y. | 0:2 (3:6, 64:7) | details | 27.01.2016 |
| Germany: Bad Salzdetfurth - Singles - Main |
|---|
| 1/8-finals | Luetjen J. | Schonenberg T. | 0:2 (63:7, 4:6) | details | 15.10.2015 |
| 1/16-finals | Sandkaulen T. | Luetjen J. | 0:2 (2:6, 4:6) | details | 13.10.2015 |
| Germany: Stuttgart - Singles - Qualification |
|---|
| Quarter-finals | Ilhan M. | Luetjen J. | 2:0 (6:2, 6:4) | details | 05.07.2014 |
 Colombia: Bogota - Singles - Main |
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| 1/8-finals | Falla A. | Luetjen J. | 2:0 (6:2, 6:3) | details | 07.11.2013 |
| 1/16-finals | Elias G. | Luetjen J. | 0:2 (1:6, 2:6) | details | 05.11.2013 |
| Germany: Bad Salzdetfurth - Singles - Main |
|---|
| 1/16-finals | Dinslaken M. | Luetjen J. | 2:1 (6:3, 3:6, 6:0) | details | 23.10.2013 |
| Germany: Ueberlingen - Singles - Main |
|---|
| Semi-finals | Jahn J. | Luetjen J. | 2:1 (6:3, 3:6, 6:3) | details | 24.08.2013 |
| Quarter-finals | Luetjen J. | Finzelberg L. | 2:0 (6:4, 6:4) | details | 23.08.2013 |
| 1/8-finals | Blecha J. | Luetjen J. | 0:1 RET. (3:6, 1:5) | details | 22.08.2013 |
| 1/16-finals | Von Massow G. | Luetjen J. | 0:2 (4:6, 2:6) | details | 20.08.2013 |
| Germany: Karlsruher - Singles - Main |
|---|
| Quarter-finals | Luetjen J. | Torebko P. | 1:2 (6:1, 4:6, 2:6) | details | 16.08.2013 |
| 1/8-finals | Obert A. | Luetjen J. | 0:2 (4:6, 0:6) | details | 15.08.2013 |
| 1/16-finals | Luetjen J. | Dinslaken M. | 2:0 (6:2, 7:6) | details | 14.08.2013 |
| Germany: Friedberg - Singles - Main |
|---|
| 1/8-finals | Luetjen J. | Finzelberg L. | 0:2 (4:6, 4:6) | details | 08.08.2013 |
| 1/16-finals | Jahn J. | Luetjen J. | 0:2 (2:6, 1:6) | details | 07.08.2013 |
 Mexico: Quintana Roo 3 - Singles - Main |
|---|
| Quarter-finals | Pereira J. | Luetjen J. | 2:0 (6:3, 6:3) | details | 14.06.2013 |
| 1/8-finals | Luetjen J. | Sanchez M. | 1:1 RET. (4:6, 6:0, 4:0) | details | 13.06.2013 |
| 1/16-finals | Luetjen J. | Bernardi P. | 2:1 (4:6, 6:4, 6:3) | details | 12.06.2013 |